
(map host-name->host-address
     '("0.0.0.1" "127.0.0.1" "255.255.255.255")) ; => (1 2130706433 4294967295)

(map host-address->host-name 
     '(1 2130706433 4294967295))		 ; => ("0.0.0.1" "127.0.0.1" 
					         ;     "255.255.255.255")

(= (host-name->host-address "255.255.255.255")
   (- (expt 2 32) 1))			         ; => #t
